Table 1.

Clinical information of samples for microarray analysis

Sample	Age (years)	Gender	Primary location	Pathology grade	Clinical subtype	Tumor size (cm3)	Stage†
1	58	Male	Lower thoracic esophagus	Moderate differentiation	Ulcerative type	5 × 3 × 1.2	pT3N3M0
2	73	Male	Mid‐thoracic esophagus	Moderate differentiation	Ulcerative type	4 × 3.5 × 1.2	pT2N1M0
3	75	Male	Lower thoracic esophagus	Poor differentiation	Ulcerative type	3 × 2.5 × 1	pT3N2M0
4	56	Female	Lower thoracic esophagus	Moderate differentiation	Ulcerative type	5 × 4 × 1.3	pT3N1M0
5	62	Male	Mid‐thoracic esophagus	Poor differentiation	Ulcerative type	6 × 3 × 0.5	pT3N0M0
6	67	Female	Lower thoracic esophagus	Poor differentiation	Ulcerative type	3 × 1.5 × 0.8	pT3N0M0

^† Postoperative pathological stage.